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HIGH8.0

GHSA-6xc4-7fmm-65q2

Code injection in concrete CMS

Quick fix

GHSA-6xc4-7fmm-65q2 — concrete5/core: upgrade to the fixed version with the command below.

composer require concrete5/core:^9.1.0

Details

Concrete CMS Versions 9.0.0 through 9.0.2 and 8.5.7 and below can download zip files over HTTP and execute code from those zip files which could lead to an RCE. Fixed by enforcing ‘concrete_secure’ instead of ‘concrete’. Concrete now only makes requests over https even a request comes in via http. Concrete CMS security team ranked this 8 with CVSS v3.1 vector: AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H Credit goes to Anna for reporting HackerOne 1482520.

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/concrete5/core
Introduced in: 9.0.0Fixed in: 9.1.0
Fixcomposer require concrete5/core:^9.1.0
Packagist/concrete5/core
Introduced in: 0Fixed in: 8.5.8
Fixcomposer require concrete5/core:^8.5.8

References